//標題標簽
@property(nonatomic,strong)UILabel*titleLabel;
//左邊按鈕
@property(nonatomic,strong)UIButton*leftBtn;
//右邊按鈕
@property(nonatomic,strong)UIButton*rightBtn;
//顯示圖片
@property(nonatomic,strong)UIImageView*myImageView;
@property(nonatomic,strong)NSArray*imageNames;
@end
@implementationViewController
- (void)viewDidLoad {
[superviewDidLoad];
self.imageNames=@[@"biaoqingdi",@"bingli",@"chiniupa",@"danteng",@"wangba"];
//定義標簽位置與名稱
self.titleLabel=[[UILabelalloc]initWithFrame:CGRectMake(50,50,150,30)];
self.titleLabel.text=@"biaoqingdi";
[self.viewaddSubview:self.titleLabel];
//定義做按鈕的位置
self.leftBtn=[[UIButtonalloc]initWithFrame:CGRectMake(20,150,45,45)];
//關(guān)閉交互
self.leftBtn.userInteractionEnabled=NO;
//定義按鈕的圖片
UIImage*leftImage=[UIImageimageNamed:@"left_disable"];
//設(shè)置左按鈕的背景圖片
[self.leftBtnsetBackgroundImage:leftImageforState:(UIControlStateNormal)];
[self.viewaddSubview:self.leftBtn];
//顯示相框名稱
self.myImageView= [[UIImageViewalloc]initWithFrame:CGRectMake(85,100,200,200)];
UIImage*image1= [UIImageimageNamed:@"biaoqingdi"];
self.myImageView.image=image1;
//顯示相框圖片
[self.viewaddSubview:self.myImageView];
//設(shè)置右按鈕位置
self.rightBtn=[[UIButtonalloc]initWithFrame:CGRectMake(305,150,45,45)];
//設(shè)置右按鈕圖片
UIImage*rightImage=[UIImageimageNamed:@"right_normal"];
//設(shè)置右按鈕背景圖片
[self.rightBtnsetBackgroundImage:rightImageforState:(UIControlStateNormal)];
[self.viewaddSubview:self.rightBtn];
[self.rightBtnaddTarget:selfaction:@selector(rightBtnAction)forControlEvents:(UIControlEventTouchUpInside)];
[self.leftBtnaddTarget:selfaction:@selector(leftBtnAction)forControlEvents:(UIControlEventTouchUpInside)];
}
-(void)leftBtnAction
{
NSUIntegerindex = [self.imageNamesindexOfObject:self.titleLabel.text];
if(index>0){
if(index==1){
self.leftBtn.userInteractionEnabled=NO;
UIImage*image = [UIImageimageNamed:@"left_disable"];
[self.leftBtnsetBackgroundImage:imageforState:(UIControlStateNormal)];
}else{
self.leftBtn.userInteractionEnabled=YES;
self.rightBtn.userInteractionEnabled=YES;
UIImage*leftNormal= [UIImageimageNamed:@"left_normal"];
UIImage*rightNormal=[UIImageimageNamed:@"right_normal"];
[self.leftBtnsetBackgroundImage:leftNormalforState:(UIControlStateNormal)];
[self.rightBtnsetBackgroundImage:rightNormalforState:(UIControlStateNormal)];
}
NSString*preTitle=self.imageNames[index-1];
self.titleLabel.text= preTitle;
self.myImageView.image=[UIImageimageNamed:preTitle];
}
}
-(void)rightBtnAction
{
//切換到下一張圖片
//獲取當(dāng)前是第幾張圖片
NSUIntegerindex = [self.imageNamesindexOfObject:self.titleLabel.text];
//不是為最后一張才切換到下一張
if(index<4){
if(index==3){
//改變右邊按鈕的顏色和關(guān)閉交互
self.rightBtn.userInteractionEnabled=NO;
UIImage*image = [UIImageimageNamed:@"right_disable"];
[self.rightBtnsetBackgroundImage:imageforState:(UIControlStateNormal)];
}else{
//左邊按鈕和右邊按鈕都是在一個正常狀態(tài)
self.leftBtn.userInteractionEnabled=YES;
self.rightBtn.userInteractionEnabled=YES;
UIImage*leftNormal= [UIImageimageNamed:@"left_normal"];
UIImage*rightNormal=[UIImageimageNamed:@"right_normal"];
[self.leftBtnsetBackgroundImage:leftNormalforState:(UIControlStateNormal)];
[self.rightBtnsetBackgroundImage:rightNormalforState:(UIControlStateNormal)];
}
//通過下標訪問下一張圖片
NSString*nextTitle =self.imageNames[index+1];
self.titleLabel.text= nextTitle;
//根據(jù)名稱加載圖片
self.myImageView.image= [UIImageimageNamed:nextTitle];
}
}
- (void)didReceiveMemoryWarning {
[superdidReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
